We've found that these machines are extremely particular when it comes to grind size, so please allow a little time to refine your brew through experimentation.
The best espresso is always made with freshly roasted and ground coffee. When purchasing from a local coffee shop / roaster, ask for coffee beans to be ground to a consistency between fine and extra fine.
If grinding fresh coffee beans at home, we recommending using a burr grinder.
Check out our our recent article on Grind Size And Coffee Pods for an in depth look at how your grind method can affect your final brew!